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References Jzwiak M, Bauer M, Kamysz W, Kleczkowska P
doi: 10.3389/fimmu.2019.00013 114 LiXWangLFangPSunYJiangXWangHet al
The thymus is a gland that secretes hormones and develops T-cells, which are trained to distinguish between self and non-self, and as people age, the thymus produces fewer hormones and immune cells, leading to a decrease in immune function and an increased risk of autoimmune diseases and cancers 11m20s
A single B12 injection costs $30
Eur J Immunol 2005
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